JPWO2009038158A1 - 音声復号装置、音声復号方法、プログラム及び携帯端末 - Google Patents
音声復号装置、音声復号方法、プログラム及び携帯端末 Download PDFInfo
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- JPWO2009038158A1 JPWO2009038158A1 JP2009533189A JP2009533189A JPWO2009038158A1 JP WO2009038158 A1 JPWO2009038158 A1 JP WO2009038158A1 JP 2009533189 A JP2009533189 A JP 2009533189A JP 2009533189 A JP2009533189 A JP 2009533189A JP WO2009038158 A1 JPWO2009038158 A1 JP WO2009038158A1
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- signal
- speech decoding
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- 238000000034 method Methods 0.000 title claims abstract description 50
- 238000012545 processing Methods 0.000 claims abstract description 58
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- 238000007493 shaping process Methods 0.000 claims abstract description 42
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- 238000009499 grossing Methods 0.000 claims description 15
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- 230000015556 catabolic process Effects 0.000 abstract description 3
- 238000006731 degradation reaction Methods 0.000 abstract description 3
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- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
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Images
Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
- G10L21/0364—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude for improving intelligibility
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/26—Pre-filtering or post-filtering
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
- G10L21/0264—Noise filtering characterised by the type of parameter measurement, e.g. correlation techniques, zero crossing techniques or predictive techniques
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/72442—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality for playing music files
Landscapes
- Engineering & Computer Science (AREA)
- Computational Linguistics (AREA)
- Quality & Reliability (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Telephone Function (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007245546 | 2007-09-21 | ||
| JP2007245546 | 2007-09-21 | ||
| PCT/JP2008/066948 WO2009038158A1 (fr) | 2007-09-21 | 2008-09-19 | Dispositif de décodage audio, procédé de décodage audio, programme et terminal mobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPWO2009038158A1 true JPWO2009038158A1 (ja) | 2011-01-06 |
Family
ID=40467967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2009533189A Pending JPWO2009038158A1 (ja) | 2007-09-21 | 2008-09-19 | 音声復号装置、音声復号方法、プログラム及び携帯端末 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPWO2009038158A1 (fr) |
| WO (1) | WO2009038158A1 (fr) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06332496A (ja) * | 1993-05-21 | 1994-12-02 | Mitsubishi Electric Corp | 音声符号化装置、音声復号化装置、音声後処理装置及びこれらの方法 |
| JPH07221650A (ja) * | 1994-02-05 | 1995-08-18 | Sony Corp | 情報符号化方法及び装置並びに情報復号化方法及び装置 |
| JPH0950298A (ja) * | 1995-08-07 | 1997-02-18 | Mitsubishi Electric Corp | 音声符号化装置及び音声復号化装置 |
| JP2000315099A (ja) * | 1999-03-02 | 2000-11-14 | Emudasu Systems:Kk | データ圧縮装置及び音データ処理方法 |
| WO2004090869A1 (fr) * | 2003-04-08 | 2004-10-21 | Nec Corporation | Procede et dispositif de conversion de code |
| WO2006041055A1 (fr) * | 2004-10-13 | 2006-04-20 | Matsushita Electric Industrial Co., Ltd. | Codeur modulable, decodeur modulable et methode de codage modulable |
-
2008
- 2008-09-19 WO PCT/JP2008/066948 patent/WO2009038158A1/fr active Application Filing
- 2008-09-19 JP JP2009533189A patent/JPWO2009038158A1/ja active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06332496A (ja) * | 1993-05-21 | 1994-12-02 | Mitsubishi Electric Corp | 音声符号化装置、音声復号化装置、音声後処理装置及びこれらの方法 |
| JPH07221650A (ja) * | 1994-02-05 | 1995-08-18 | Sony Corp | 情報符号化方法及び装置並びに情報復号化方法及び装置 |
| JPH0950298A (ja) * | 1995-08-07 | 1997-02-18 | Mitsubishi Electric Corp | 音声符号化装置及び音声復号化装置 |
| JP2000315099A (ja) * | 1999-03-02 | 2000-11-14 | Emudasu Systems:Kk | データ圧縮装置及び音データ処理方法 |
| WO2004090869A1 (fr) * | 2003-04-08 | 2004-10-21 | Nec Corporation | Procede et dispositif de conversion de code |
| WO2006041055A1 (fr) * | 2004-10-13 | 2006-04-20 | Matsushita Electric Industrial Co., Ltd. | Codeur modulable, decodeur modulable et methode de codage modulable |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009038158A1 (fr) | 2009-03-26 |
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